I can't change the name of my mobile phone contact.

Why can't I change it? This is very simple. You can not only change the contact name, mobile phone number, ringtone and wallpaper of incoming calls, but also change the contact details, such as company address, home address, personalized ringtone of incoming calls and personalized ringtone of SMS. You can customize the settings. This is generally allowed, and it is easy to change, and it is not that difficult. You can find the contact column, click in and find the contact name you want to change.